80xx, 70xx driveline question

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

   I have never been inside the trans or rear housing of these. I havn't even had to split one yet. Just trying understand how the hyd, and pto get power when the clutch is disengaged. Is the trans input shaft and main shaft hollow and a drive shaft runs all the way through the power shift or power direct transmission? Looking in the IT book or parts book doesn't show me much either. I know of a tractor that has low side of power director out that I may try to buy so I can tear one down for the learning experience.Thanks 
Leon B MO

	This site is not affiliated with AGCO Inc., Duluth GA., Allis-Chalmers Co., Milwaukee, WI., or any surviving or related corporate entity. All trademarks remain the property of their respective owners. All information presented herein should be considered the result of an un-moderated public forum with no responsibility for its accuracy or usability assumed by the users and sponsors of this site or any corporate entity.
	The Forum	Parts and Services	Unofficial Allis Store	Tractor Shows	Serial Numbers	History

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
Leon B MO Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 12 Sep 2009 Location: Old Monroe, Mo Points: 2200	Post Options Post Reply Quote Leon B MO Report Post Thanks(0) Quote Reply Topic: 80xx, 70xx driveline question Posted: 11 Dec 2016 at 11:14am
	I have never been inside the trans or rear housing of these. I havn't even had to split one yet. Just trying understand how the hyd, and pto get power when the clutch is disengaged. Is the trans input shaft and main shaft hollow and a drive shaft runs all the way through the power shift or power direct transmission? Looking in the IT book or parts book doesn't show me much either. I know of a tractor that has low side of power director out that I may try to buy so I can tear one down for the learning experience. Thanks Leon B MO
	Uncle always said "Fill the back of the shovel and the front will take care of itself".

Sponsored Links

nevans Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 06 Dec 2011 Location: Red Bud. IL Points: 837	Post Options Post Reply Quote nevans Report Post Thanks(0) Quote Reply Posted: 11 Dec 2016 at 11:59am
	yes there's a long shaft running towards the back that runs the gears in the rear hsg. that run the shaft to the hyd. pump Niel

SteveM C/IL Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Location: Shelbyville IL Points: 8679	Post Options Post Reply Quote SteveM C/IL Report Post Thanks(0) Quote Reply Posted: 11 Dec 2016 at 1:06pm
	burn the IT..get a real book.That through shaft is about 4ft long or so it seems.You need the real manual cause the PD has demensions between it and trans that require shims.Don't be like the clown who worked on mine before I got it...was totally screwed up.None of it is hard.The factory manual tells/shows everything you need to know to rebuild ANYTHING if you can read and follow directions.You may have to come up with ways to do things like lift PD into position LOL. That dude is HEAVY and you're feeding it in a hole with no way to hang on to it.